Thank you for the suggestion.
I have looked at the Sony Vaio Z and I considered it. It is a very thin and light laptop, weighs less than a 11-inch MacBook Air, despite being a 13-inch laptop with a dual or quad core standard voltage processor. It could have been a real killer. I have seen it a couple of times at FastShop and Fnac stores here in São Paulo.
However, I have to say I gave it up for some reasons.
First, I learned that Sony is going to discontinue this model, probably due to low sales. So, there will be no Vaio Z powered by Haswell. Sony will likely focus on the crappy Vaio T instead.
Second, the version sold here in Brazil still uses Sandy Bridge, and was not updated to Ivy Bridge. In the US, the Vaio Z got the Ivy Bridge processor, but I guess it is pretty much unavailable. I could not find it at a Sony store when I was in the US in October last year.
Third, I found the keyboard to have short key travel and poor tactile feedback. As I am a typist, I would prefer to have a laptop with a more comfortable keyboard.
Fourth, I have read that it has some heating issues. It should be no surprise, as Sony managed to put a standard voltage processor in such a small case.
The one in the paulista mall is a z13, the last year model.
Sony has indeed discontinued the model. Pure and simple the Z line was never affordable, they always started around 2k, always in the same size, and sporting extreme quality display (aside the viewing angles and the res the Z 1080p screen is in another level of quality, color accuracy, gamut)
But I agree with your points regarding the keyboard, not to mention the touchpad
Never had any problems with the last years model the Z2